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Xenical and Alli: Liver Risk?

By Smirnoff, Sep 25, 2009 | Updated: Sep 25, 2009 | | |
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  1. Smirnoff
    FDA Investigating Reports of Liver Injury in Patients Using Weight Loss Drug Orlistat

    Aug. 24, 2009 -- The FDA today announced that it is reviewing adverse event reports of liver injury in patients taking the weight loss drug orlistat, marketed as the prescription drug Xenical and the over-the-counter medication Alli.

    Xenical was approved by the FDA in 1999; Alli was approved in 2007 as an over-the-counter weight loss aid for adults.

    Between 1999 and October 2008, the FDA received 32 reports of serious liver injury in patients taking orlistat. That includes 27 cases that involved hospitalization and six cases of liver failure.

    Thirty of the 32 reports occurred outside the U.S., the FDA notes. Orlistat is approved in about 100 countries.

    The most commonly reported adverse events included yellowing of the skin or whites of the eyes (jaundice), weakness, and stomach pain.

    The FDA is reviewing additional data submitted by orlistat makers on suspected cases of liver injury. The issue was also discussed in April 2009 at the FDA's Center for Drug Evaluation and Research Drug Safety Oversight Board.

    "The issues here are complex, but FDA has benefited from the input of the Board, including comments from representatives from three FDA Centers and several other agencies in the Department of Health and Human Services," Steven Osborne, MD, executive director of the FDA's Drug Safety Oversight Board, states in an FDA news release.

    The FDA is still analyzing the data and states that "no definite association between liver injury and orlistat has been established at this time." That means that it's not clear that orlistat caused the reported cases of liver injury. The FDA will release its findings on orlistat as soon as its review is completed.

    In the meantime, the FDA isn't recommending any prescribing changes for orlistat and no changes in use of Xenical or Alli.

    "Consumers taking Xenical should continue to take it as prescribed, and those using over-the-counter Alli should continue to use the product as directed," states the FDA.

    The FDA also recommends that people who have used orlistat consult a health care professional if they experience symptoms possibly associated with development of liver injury, particularly weakness or fatigue, fever, jaundice, or brown urine. Other symptoms may include abdominal pain, nausea, vomiting, light-colored stools, itching, or loss of appetite.
    Health care professionals and consumers can report side effects from orlistat -- or any other drug -- to the FDA's MedWatch Adverse Event Reporting program online or by calling 800-FDA-1088.

    [h3]Drug Companies Respond[/h3]
    Xenical is marketed by Roche. "Patient safety is very important to us and we continue to work very closely with the FDA. At this time, per the FDA's alert, no causal relationship can be established and changes in prescribing are not recommended," a Roche spokesman Terry Hurley told WebMD.

    Alli is marketed by GlaxoSmithKline. "There is no evidence that Alli causes liver damage," Deborah Bolding, communications manager-North America for GlaxoSmithKline Consumer Healthcare, tells WebMD in an email. Bolding notes that Alli is "minimally absorbed in the blood and works locally in the gastrointestinal tract. There is, therefore, no obvious biological mechanism to suggest liver damage can occur with Alli."

    "Liver changes can have many causes," Bolding says. "People who are overweight and obese are predisposed to liver-related disorders." Bolding says consumer safety is of "utmost importance" to GlaxoSmithKline and that orlistat is "the most-studied weight loss medicine, with safety established through 100 clinical studies involving more than 30,000 patients."

    By Miranda Hitti
    WebMD Health News
    Reviewed by Louise Chang, MD
    © 2009 WebMD, LLC. All rights reserved.

    http://www.webmd.com/diet/news/20090824/xenical-and-alli-liver-risk

Comments

  1. chillinwill
    Please note that the way we post news has changed, because of our main news page. You can find the full instructions here.

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  2. Smirnoff
    well really i read all those things but I can't figure out how it can change something to the fact it appears on the news page.. cant figure it out.. really sorry...

    really cant figure out whats wrong now with this post...

    also could someone post link or explain to me how to insert image in post...
  3. chillinwill
    To post an image, upload the file as an attachment using the icon paperclip icon. Once uploaded, copy the link (should say something like http://www.drugs-forum.com/forum/attachment.php?attachmentid=10768&stc=1&d=1253286161). To make it appear on the left of the icon, have the that link you just copied and pasted into the thread highlighted and click on the wrap [imgl] tags to left icon on the right side of your screen. Thus, the attachment will now show up as
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